December 2012

Conference Paper

Qualification of the Joints for ITER Central Solenoid

By:
Martovetsky, Nicolai ; Berryhill, Adam; Kenney, Steven J
Journal Name:
IEEE Transactions on Applied Superconductivity
Page Number:
4804004-4804004
Volume:
22
Issue Number:
3
Publication Date:
December 2012
Conference Name:
22nd International Conference on Magnet Technology
Conference Location:
Marseille, France
Conference Sponsor:
IEEE Transactions on Applied Superconductivity
View DOI Listing:
https://doi.org/10.1109/TASC.2011.2179400

Abstract

The ITER Central Solenoid has 36 interpancake joints, 12 bus joints, and 12 feeder joints in the magnet. The joints are required to have resistance below 4 nOhm at 45 kA at 4.5 K. The US ITER Project Office developed two different types of interpancake joints with some variations in details in order to find a better design, qualify the joints, and establish a fabrication process. We built and tested four samples of the sintered joints and two samples with butt-bonded joints (a total of eight joints). Both designs met the specifications. Results of the joint development, test results, and selection of the baseline design are presented and discussed in the paper.